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genre: classical
genre: opera
description: Harry Gustaf Nikolai Gädda, better known as Nicolai Gedda (11 July 1925 – 8 January 2017), was a Swedish operatic tenor. Debuting in 1951, Gedda had a long and successful career in opera until the age
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album: Delibes: Lakmé
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      date published: 2026-07-08T03:20:19Z
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      date published: 2026-07-31T09:50:11Z
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  track: Delibes: Lakmé, Act 1: "Prendre le dessin d'un bijou" - Air. "Fantaisie aux divins mensonges" (Gérald)
album: Gounod: Faust (1953 Version)
album: Gounod: Faust (Live)
album: Gluck: Iphigénie en Tauride, Wq. 46
album: L'art de la mélodie. Debussy, Fauré, Hahn, Poulenc, Satie
album: Mussorgsky: Boris Godunov
album: Mozart: Don Giovanni, K. 527 (Remastered)
album: Mozart: Die Zauberflöte, K. 620
album: Glinka: A Life for the Tsar (Arr. N. Rimsky-Korsakov)
album: Berlioz: Grande messe des morts, Op. 5, H. 75 "Requiem" (Live)
album: J.S. Bach: Mass in B Minor, BWV 232
album: Great Verdi Voices
album: Nicolai Gedda (Live)
album: Liebermann: Die Schule der Frauen (Live)
album: O Helga Natt
album: Gluck: Opera Gala
album: Mozart: Idomeneo
album: Great Swedish Singers: Nicolai Gedda (1960-1976)
album: Schumann: Die Großen Chorwerke / The Great Choral Works
album: Weber: Euryanthe
album: Debussy: Pelléas et Mélisande, L. 88 (Live) [Orfeo d'Or]
album: Pfitzner: Palestrina
album: Debussy: Pelléas et Mélisande
album: Idomeneo - Oper in drei Akten
album: Kienzl: Der Evangelimann [Electrola-Querschnitt]
album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
album: Lehár: Zigeunerliebe, Giuditta, Der Zarewitsch
album: Peterson-Berger: The Nicolai Gedda Collection of Swedish Song
album: Peterson-Berger: Songs, Piano & Violin Music
album: Sjogren: Songs, Vol. 3
album: Lehár: Die lustige Witwe, Schön ist die Welt
album: Cornelius: The Barber of Bagdad (Der Barbier von Bagdad)
album: Rousseau: Le devin du village
album: J. Strauss II: Der Zigeunerbaron
album: Rachmaninov & Tcherepnin: Mélodies
album: Singers of the Century: Opera Recital
album: Elisabeth Schwarzkopf sings Bach
album: Nikolai Gedda Concert in Moscow, October 6, 1980 (Live)
album: Verdi: La traviata
album: Gluck: Alceste (Sung in French)
album: Gluck: Alceste (Highlights) [Sung in French]
album: Bach, Schubert, Fauré, Poulenc, Reutter & Strauss: Lieder (Live)
album: Adam: Der Postillon von Lonjumeau [Electrola Querschnitte]
album: Verdi auf Deutsch: Don Carlos
album: Pushkin Songs
album: Nicolai Gedda: The First Ten Years, 1952-1962
album: Nicolai Gedda Live in Budapest, 1984: Goethe Songs
album: Nicolai Gedda & Tatiana Gedda Viennese Delights
track: Les Contes d'Hoffmann, Act II: Belle nuit, ô nuit d'amour (Barcarolle)
track: Die Zauberflöte, K. 620, Act II: Der Hölle Rache kocht in meinem Herzen (Königin der Nacht)
track: Strauss, R: Der Rosenkavalier, Op. 59, Act I: "Di rigori armato il seno" (Singer)
track: La Bohème, Act I: Oh! sventata, sventata (Mimì, Rodolfo)
track: La Bohème (1991 Digital Remaster), Act I: Sì. Mi chiamano Mimì (Mimì/Rodolfo)
track: Faust - opera in five acts (1989 Digital Remaster), Act II: Le veau d'or est toujours debout! (Méphistophélès/Choeur)
track: The Barber of Seville, Act I: Largo al factotum
track: Vesperae solennes de confessore, K. 339: V. Laudate Dominum

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Delibes: Lakmé, Act 1: "Prendre le dessin d'un bijou" - Air. "Fantaisie aux divins mensonges" (Gérald)
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genre: classical
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  date published: 2026-07-08T03:20:19Z
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Gounod: Faust (1953 Version)
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    date published: 2026-07-08T03:53:27Z
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Gounod: Faust (Live)
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Gluck: Iphigénie en Tauride, Wq. 46
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7020bca4ab706953495e15a0cc163b61b33bff4ef3b6c2e287c4159d152d3f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ116101260 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Gluck: Iphigénie en Tauride, Wq. 46, Act 1: "Ô toi qui prolongeas mes jours" (Iphigénie)
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.071
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.084
    additional property: Key Name
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    additional property: Mode Name
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L'art de la mélodie. Debussy, Fauré, Hahn, Poulenc, Satie
type: MusicAlbum
date published: 2023-02-03
track: Fauré: 3 Mélodies, Op. 18: No. 1, Nell
  type: MusicRecording
  duration: PT1M59S
  duration ms: 119306
  explicit: false
  by artist: Gabriel Fauré
  by artist: Nicolai Gedda
  by artist: Aldo Ciccolini
  in album: L'art de la mélodie. Debussy, Fauré, Hahn, Poulenc, Satie
    type: MusicAlbum
    date published: 2023-02-03
  isrc code: FRZ110902383
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T13:12:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x719067f88032665beab42b14cf3cdd617fd0369360977fff77083d00445d5b26
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110902383
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719067f88032665beab42b14cf3cdd617fd0369360977fff77083d00445d5b26. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110902383 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Fauré: 3 Mélodies, Op. 18: No. 1, Nell
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 109.748
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.367
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.995
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.097
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.424
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.14
    additional property: Key Name
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      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Fauré: Poème d'un jour, Op. 21: No. 1, Rencontre
  type: MusicRecording
  duration: PT2M22S
  duration ms: 142826
  explicit: false
  by artist: Gabriel Fauré
  by artist: Nicolai Gedda
  by artist: Aldo Ciccolini
  in album: L'art de la mélodie. Debussy, Fauré, Hahn, Poulenc, Satie
    type: MusicAlbum
    date published: 2023-02-03
  isrc code: FRZ110902384
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T08:49:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xebad8954153fee563fdb430a4a2c67db5421a4bfa7a6b656286c2d757d94484a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960376
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110902384
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T09:09:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebad8954153fee563fdb430a4a2c67db5421a4bfa7a6b656286c2d757d94484a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110902384 — a six-check JSON result.
    date published: 2026-07-31T09:09:19Z
  audio: Fauré: Poème d'un jour, Op. 21: No. 1, Rencontre
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.29
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.48
    additional property: Key Name
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      value: C#
    additional property: Mode Name
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track: Fauré: 3 Mélodies, Op. 7: No. 1, Après un rêve
  type: MusicRecording
  duration: PT2M37S
  duration ms: 157093
  explicit: false
  by artist: Gabriel Fauré
  by artist: Nicolai Gedda
  by artist: Aldo Ciccolini
  in album: L'art de la mélodie. Debussy, Fauré, Hahn, Poulenc, Satie
    type: MusicAlbum
    date published: 2023-02-03
  isrc code: FRZ110902387
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xed42409fb06e63b7a6ff816d6733e71b06cd2ea983c74c3d18d01b2b899cae77
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 960418
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Fauré: 3 Mélodies, Op. 7: No. 1, Après un rêve
track: Hahn: D'une prison

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960418

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110902387

OTSTimestamp
type: PropertyValue
value: 2026-07-31T15:20:15Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed42409fb06e63b7a6ff816d6733e71b06cd2ea983c74c3d18d01b2b899cae77. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110902387 — a six-check JSON result.
date published: 2026-07-31T15:20:15Z

Fauré: 3 Mélodies, Op. 7: No. 1, Après un rêve
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 128.426
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.325
additional property: Energy
  type: PropertyValue
  value: 0.157
additional property: Speechiness
  type: PropertyValue
  value: 0.039
additional property: Acousticness
  type: PropertyValue
  value: 0.994
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.078
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.102
additional property: Loudness (dB)
  type: PropertyValue
  value: -19.307
additional property: Key Name
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  value: Bb
additional property: Mode Name
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Hahn: D'une prison
type: MusicRecording
duration: PT2M30S
duration ms: 150026
explicit: false
by artist: Reynaldo Hahn
by artist: Nicolai Gedda
by artist: Aldo Ciccolini
in album: L'art de la mélodie. Debussy, Fauré, Hahn, Poulenc, Satie
  type: MusicAlbum
  date published: 2023-02-03
isrc code: FRZ110902401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-31T14:52:22+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9c15c07af4b6dcfae4ceb1f2f32d958d673dc1acb80624b6292112c04b1a3093
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110902401
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c15c07af4b6dcfae4ceb1f2f32d958d673dc1acb80624b6292112c04b1a3093. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110902401 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Hahn: D'une prison
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
    value: 0.029
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.103
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.748
  additional property: Key Name
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  additional property: Mode Name
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    value: Major

Mussorgsky: Boris Godunov
type: MusicAlbum
date published: 2024-01-26
track: Mussorgsky: Boris Godunov, Prologue: Introduction
  type: MusicRecording
  duration: PT1M45S
  duration ms: 105560
  explicit: false
  by artist: Modest Mussorgsky
  by artist: Issay Dobrowen
  by artist: Orchestre National Radiodiffusion Française
  in album: Mussorgsky: Boris Godunov
    type: MusicAlbum
    date published: 2024-01-26
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: FRZ115206627
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T22:41:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6be7fc443f4b8b8de99d03b04ba78701b32c2e7097e55d30145fb107907d798a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960160
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206627
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T22:48:59Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be7fc443f4b8b8de99d03b04ba78701b32c2e7097e55d30145fb107907d798a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206627 — a six-check JSON result.
    date published: 2026-07-29T22:48:59Z
  audio: Mussorgsky: Boris Godunov, Prologue: Introduction
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.8
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.314
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.312
    additional property: Key Name
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      value: C#
    additional property: Mode Name
      type: PropertyValue
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track: Mussorgsky: Boris Godunov, Prologue: "Nu, chtozh vy?" (Officier, Chorus)
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  duration: PT5M18S
  duration ms: 318466
  explicit: false
  by artist: Modest Mussorgsky
  by artist: Issay Dobrowen
  by artist: Chœurs russes de Paris
  by artist: Stanisław Pieczora
  by artist: Orchestre National Radiodiffusion Française
  in album: Mussorgsky: Boris Godunov
    type: MusicAlbum
    date published: 2024-01-26
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: FRZ115206628
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-07T02:50:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa9f3a78576fe843ccde40f63fa5197227578d92610c8f6cff5cf38afae7fbce0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206628
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f3a78576fe843ccde40f63fa5197227578d92610c8f6cff5cf38afae7fbce0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206628 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Mussorgsky: Boris Godunov, Prologue: "Nu, chtozh vy?" (Officier, Chorus)
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 125.4
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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  subject of: OpenTimestamps Proof of Existence
  audio: Mussorgsky: Boris Godunov, Prologue: Shchelkalov's Adress. "Pravoslavnye! Ne umolim boyarin" (Shchelkalov)
track: Mussorgsky: Boris Godunov, Prologue: Pilgrim's Chorus. "Slava tebe, tvortsu vsevyshnemu" (Chorus)
track: Mussorgsky: Boris Godunov, Prologue, Coronation Scene: Introduction
track: Mussorgsky: Boris Godunov, Prologue, Coronation Scene: "Da zdrastvuet tsar' Boris Fedorovich!" (Shuysky, Chorus)
track: Mussorgsky: Boris Godunov, Prologue, Coronation Scene: "Slava! Slava! Slava!" (Chorus)
track: Mussorgsky: Boris Godunov, Act 1: Pimen's Monologue. "Eshche odno poslednee skazan's" (Pimen)
track: Mussorgsky: Boris Godunov, Act 1: Grigoriy's Dream. "Bozhe krepkiy pravyi" (Chorus, Grigoriy, Pimen)
track: Mussorgsky: Boris Godunov, Act 1: Grigoriy's Dream. "Ty vse pisal i snom ne pozabylsa" (Grigoriy, Pimen)
track: Mussorgsky: Boris Godunov, Act 1: Boris' Crime. "Davno, chestnoy otets" (Grigoriy, Pimen)
track: Mussorgsky: Boris Godunov, Act 1: "Zvonyat k zautreni" (Chorus, Grigoriy, Pimen)
track: Mussorgsky: Boris Godunov, Act 1: Song of the Hostess. "Poymala ya siza seleznya" (The Hostess, Varlaam, Misail)
track: Mussorgsky: Boris Godunov, Act 1: "Zheno, mir domu tvoemu!" (Varlaam, Misail, The Hostess, Grigoriy)
track: Mussorgsky: Boris Godunov, Act 1: Drinking Song. "Kak vo gorode bylo vo Kazani" (Varlaam, Grigoriy, Misail)
track: Mussorgsky: Boris Godunov, Act 1: "Kak edet en" (Varlaam, Grigoriy, The Hostess)
track: Mussorgsky: Boris Godunov, Act 2: Clock Scene. "Uf, tyazhelo!" (Boris)
track: Mussorgsky: Boris Godunov, Act 4: Council of Boyars. "Chto zh, poydem na golosa, boyare" (Chorus)

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date published: 2026-07-08T03:20:19Z

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Mussorgsky: Boris Godunov, Prologue: Pilgrim's Chorus. "Slava tebe, tvortsu vsevyshnemu" (Chorus)
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by artist: Issay Dobrowen
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T04:14:58Z
audio: Mussorgsky: Boris Godunov, Prologue: Pilgrim's Chorus. "Slava tebe, tvortsu vsevyshnemu" (Chorus)
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Mussorgsky: Boris Godunov, Prologue, Coronation Scene: Introduction
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T15:42:38Z
audio: Mussorgsky: Boris Godunov, Prologue, Coronation Scene: Introduction
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Mussorgsky: Boris Godunov, Prologue, Coronation Scene: "Da zdrastvuet tsar' Boris Fedorovich!" (Shuysky, Chorus)
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by artist: Issay Dobrowen
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by artist: Orchestre National Radiodiffusion Française
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genre: classical
genre: late-romantic-era
genre: early-modern-classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Mussorgsky: Boris Godunov, Prologue, Coronation Scene: "Slava! Slava! Slava!" (Chorus)
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:25:34Z
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Mussorgsky: Boris Godunov, Act 1: Pimen's Monologue. "Eshche odno poslednee skazan's" (Pimen)
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc94d47fea6bedcd550a90a6239fe6624c24a7382669051458a05d11b061731. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206635 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mussorgsky: Boris Godunov, Act 1: Pimen's Monologue. "Eshche odno poslednee skazan's" (Pimen)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.054
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.499
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Mussorgsky: Boris Godunov, Act 1: Grigoriy's Dream. "Bozhe krepkiy pravyi" (Chorus, Grigoriy, Pimen)
type: MusicRecording
duration: PT3M6S
duration ms: 186733
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: Boris Christoff
by artist: Chœurs russes de Paris
by artist: Nicolai Gedda
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206636
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:55:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcea2a37e9999b8089dbb7f5efe440b8f0f4edfc68f0dcb102f01067c7eea23b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206636
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea2a37e9999b8089dbb7f5efe440b8f0f4edfc68f0dcb102f01067c7eea23b3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206636 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mussorgsky: Boris Godunov, Act 1: Grigoriy's Dream. "Bozhe krepkiy pravyi" (Chorus, Grigoriy, Pimen)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.967
  additional property: Musical Key
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    value: 11
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.194
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.08
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.524
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mussorgsky: Boris Godunov, Act 1: Grigoriy's Dream. "Ty vse pisal i snom ne pozabylsa" (Grigoriy, Pimen)
type: MusicRecording
duration: PT3M45S
duration ms: 225800
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: Boris Christoff
by artist: Nicolai Gedda
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206637
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:46:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e10e129de7eff851388bf762fc2607ddc189ca1bec23fbc602018e3e2f17a4d
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206637
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e10e129de7eff851388bf762fc2607ddc189ca1bec23fbc602018e3e2f17a4d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206637 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Mussorgsky: Boris Godunov, Act 1: Grigoriy's Dream. "Ty vse pisal i snom ne pozabylsa" (Grigoriy, Pimen)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.437
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.317
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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    value: 0.034
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.094
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.261
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mussorgsky: Boris Godunov, Act 1: Boris' Crime. "Davno, chestnoy otets" (Grigoriy, Pimen)
type: MusicRecording
duration: PT2M3S
duration ms: 123640
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: Boris Christoff
by artist: Nicolai Gedda
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206638
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:36:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb6924c75feedde9dd322fd2cab43793ec7bb3fec78a7e7db22764fe85d83bc47
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960481
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960481
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206638
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6924c75feedde9dd322fd2cab43793ec7bb3fec78a7e7db22764fe85d83bc47. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206638 — a six-check JSON result.
  date published: 2026-07-31T23:51:35Z
audio: Mussorgsky: Boris Godunov, Act 1: Boris' Crime. "Davno, chestnoy otets" (Grigoriy, Pimen)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.439
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.29
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.052
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mussorgsky: Boris Godunov, Act 1: "Zvonyat k zautreni" (Chorus, Grigoriy, Pimen)
type: MusicRecording
duration: PT3M47S
duration ms: 227533
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: Boris Christoff
by artist: Chœurs russes de Paris
by artist: Nicolai Gedda
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206639
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:46:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf77bf5fd13aec58fcdc02ee99c1d79898bff49f2b0ee3f3c96fa050369339d32
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206639
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77bf5fd13aec58fcdc02ee99c1d79898bff49f2b0ee3f3c96fa050369339d32. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206639 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mussorgsky: Boris Godunov, Act 1: "Zvonyat k zautreni" (Chorus, Grigoriy, Pimen)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.812
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.123
  additional property: Energy
    type: PropertyValue
    value: 0.014
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.503
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mussorgsky: Boris Godunov, Act 1: Song of the Hostess. "Poymala ya siza seleznya" (The Hostess, Varlaam, Misail)
type: MusicRecording
duration: PT3M24S
duration ms: 204533
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: André Bielecki
by artist: Boris Christoff
by artist: Lydia Romanova
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206640
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:27:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5da36e44ccc88221ea8aac284971d1634a708d82f0bb7668f5ceb6309ee91c30
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206640
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da36e44ccc88221ea8aac284971d1634a708d82f0bb7668f5ceb6309ee91c30. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206640 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Mussorgsky: Boris Godunov, Act 1: Song of the Hostess. "Poymala ya siza seleznya" (The Hostess, Varlaam, Misail)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.798
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.404
  additional property: Energy
    type: PropertyValue
    value: 0.131
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.018
  additional property: Liveness
    type: PropertyValue
    value: 0.246
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.303
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.683
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mussorgsky: Boris Godunov, Act 1: "Zheno, mir domu tvoemu!" (Varlaam, Misail, The Hostess, Grigoriy)
type: MusicRecording
duration: PT2M30S
duration ms: 150826
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: André Bielecki
by artist: Boris Christoff
by artist: Lydia Romanova
by artist: Nicolai Gedda
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206641
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:08:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20d83e2366e2d290a3f12640799fc281c1d1e105038d17f08072340e4a198e60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206641
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d83e2366e2d290a3f12640799fc281c1d1e105038d17f08072340e4a198e60. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206641 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Mussorgsky: Boris Godunov, Act 1: "Zheno, mir domu tvoemu!" (Varlaam, Misail, The Hostess, Grigoriy)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.036
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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Mussorgsky: Boris Godunov, Act 1: Drinking Song. "Kak vo gorode bylo vo Kazani" (Varlaam, Grigoriy, Misail)
type: MusicRecording
duration: PT3M34S
duration ms: 214800
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: André Bielecki
by artist: Boris Christoff
by artist: Nicolai Gedda
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206642
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206642
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528c65ca794db3b7e1ffaea197f6b4ab806a7d33adc6010eedec9e96abfffd9a. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206642 — a six-check JSON result.
  date published: 2026-07-31T05:48:30Z
audio: Mussorgsky: Boris Godunov, Act 1: Drinking Song. "Kak vo gorode bylo vo Kazani" (Varlaam, Grigoriy, Misail)
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Mussorgsky: Boris Godunov, Act 1: "Kak edet en" (Varlaam, Grigoriy, The Hostess)
type: MusicRecording
duration: PT3M38S
duration ms: 218400
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: Boris Christoff
by artist: Lydia Romanova
by artist: Nicolai Gedda
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206643
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7556565ae697cb2fc64fd261393443a6ae1fc6542d6b1cef5f3cc06c654cd181. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206643 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Mussorgsky: Boris Godunov, Act 1: "Kak edet en" (Varlaam, Grigoriy, The Hostess)
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Mussorgsky: Boris Godunov, Act 2: Clock Scene. "Uf, tyazhelo!" (Boris)
type: MusicRecording
duration: PT3M39S
duration ms: 219560
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: Boris Christoff
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206657
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df8164bea89b0081a32b65af427d92fe0d49731afe184f4111e75b91369a516. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206657 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Mussorgsky: Boris Godunov, Act 2: Clock Scene. "Uf, tyazhelo!" (Boris)
  type: AudioObject
  additional property: Tempo (BPM)
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Mussorgsky: Boris Godunov, Act 4: Council of Boyars. "Chto zh, poydem na golosa, boyare" (Chorus)
type: MusicRecording
duration: PT3M34S
duration ms: 214626
explicit: false
by artist: Modest Mussorgsky
by artist: Issay Dobrowen
by artist: Chœurs russes de Paris
by artist: Orchestre National Radiodiffusion Française
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 2024-01-26
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: FRZ115206675
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206675
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6926e0018cbf0651ab9a0315f5f7f3d3af4b0aaba7aa48e92fd424c261ebe8f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115206675 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mussorgsky: Boris Godunov, Act 4: Council of Boyars. "Chto zh, poydem na golosa, boyare" (Chorus)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Valence (Positivity)
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Mozart: Don Giovanni, K. 527 (Remastered)
type: MusicAlbum
date published: 2023-11-01
track: Mozart: Don Giovanni, K. 527: Sinfonia
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  duration: PT6M32S
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  by artist: Wolfgang Amadeus Mozart
  by artist: Otto Klemperer
  by artist: New Philharmonia Orchestra
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    type: MusicAlbum
    date published: 2023-11-01
  popularity: 2
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: GBAYC2300865
  additional property: CopyrightID
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  additional property: CopyrightRegisteredAt
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300865
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3a97cf2bc8b2eb8fd939e70e223c69e31be3cfdda9b9c9f3356b98df9416da. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300865 — a six-check JSON result.
    date published: 2026-07-31T23:51:35Z
  audio: Mozart: Don Giovanni, K. 527: Sinfonia
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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track: Mozart: Don Giovanni, K. 527, Act 1: "Notte e giorno faticar" (Leporello)
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300866
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c7cd77a35c9c95b857a9588ae08b7af5d379d4e1834a11abab382d78d885e. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300866 — a six-check JSON result.
    date published: 2026-07-31T16:07:24Z
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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track: Mozart: Don Giovanni, K. 527, Act 1: "Non sperar, se non m’uccidi" (Donna Anna, Don Giovanni, Leporello)
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  by artist: Wolfgang Amadeus Mozart
  by artist: Otto Klemperer
  by artist: Claire Watson
  by artist: Nicolai Ghiaurov
  by artist: Walter Berry
  by artist: New Philharmonia Orchestra
  in album: Mozart: Don Giovanni, K. 527 (Remastered)
  popularity: 2
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: GBAYC2300867
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mozart: Don Giovanni, K. 527, Act 1: "Non sperar, se non m’uccidi" (Donna Anna, Don Giovanni, Leporello)
track: Mozart: Don Giovanni, K. 527, Act 1: "Lasciala, indegno!" (Commendatore, Don Giovanni, Leporello)
track: Mozart: Don Giovanni, K. 527, Act 1: "Fuggi, crudele, fuggi!" (Donna Anna, Don Ottavio)
track: Mozart: Don Giovanni, K. 527, Act 1: "Manco male è partita" (Don Giovanni, Leporello, Zerlina, Masetto)
track: Mozart: Don Giovanni, K. 527, Act 1: "Ho capito, signor, sì!" (Masetto)
track: Mozart: Don Giovanni, K. 527, Act 1: "Alfin siam liberati" (Don Giovanni, Zerlina)
track: Mozart: Don Giovanni, K. 527, Act 1: "Là ci darem la mano" (Don Giovanni, Zerlina)

New Philharmonia Orchestra
type: MusicGroup

Mozart: Don Giovanni, K. 527 (Remastered)
type: MusicAlbum
date published: 2023-11-01

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T19:02:48+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x92c44f49d122a2edd2799fff002909738554522b155f737ed0a4910aa4028d28

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300867

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c44f49d122a2edd2799fff002909738554522b155f737ed0a4910aa4028d28. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300867 — a six-check JSON result.
date published: 2026-07-08T03:53:27Z

Mozart: Don Giovanni, K. 527, Act 1: "Non sperar, se non m’uccidi" (Donna Anna, Don Giovanni, Leporello)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 103.912
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
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additional property: Time Signature
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  value: 5
additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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  value: -14.236
additional property: Key Name
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  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

Mozart: Don Giovanni, K. 527, Act 1: "Lasciala, indegno!" (Commendatore, Don Giovanni, Leporello)
type: MusicRecording
duration: PT2M57S
duration ms: 177413
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Otto Klemperer
by artist: Franz Crass
by artist: Nicolai Ghiaurov
by artist: Walter Berry
by artist: New Philharmonia Orchestra
in album: Mozart: Don Giovanni, K. 527 (Remastered)
  type: MusicAlbum
  date published: 2023-11-01
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2300868
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T00:12:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc30a12cbd6e62d2962f3d4c1b4dde8deb8e17670e0095c563eab5b1f9372f4bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960489
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960489
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300868
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T00:40:43Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30a12cbd6e62d2962f3d4c1b4dde8deb8e17670e0095c563eab5b1f9372f4bb. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300868 — a six-check JSON result.
  date published: 2026-08-01T00:40:43Z
audio: Mozart: Don Giovanni, K. 527, Act 1: "Lasciala, indegno!" (Commendatore, Don Giovanni, Leporello)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.463
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.332
  additional property: Energy
    type: PropertyValue
    value: 0.286
  additional property: Speechiness
    type: PropertyValue
    value: 0.081
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.244
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.115
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.768
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Don Giovanni, K. 527, Act 1: "Fuggi, crudele, fuggi!" (Donna Anna, Don Ottavio)
type: MusicRecording
duration: PT4M27S
duration ms: 267973
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Otto Klemperer
by artist: Claire Watson
by artist: Nicolai Gedda
by artist: New Philharmonia Orchestra
in album: Mozart: Don Giovanni, K. 527 (Remastered)
  type: MusicAlbum
  date published: 2023-11-01
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2300870
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:58:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdbcdf17b8d7e08e2a257dba9092f6aeed8b8b0c2ddb3b5b1c6e03d337dcfd54d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300870
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcdf17b8d7e08e2a257dba9092f6aeed8b8b0c2ddb3b5b1c6e03d337dcfd54d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300870 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Don Giovanni, K. 527, Act 1: "Fuggi, crudele, fuggi!" (Donna Anna, Don Ottavio)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.546
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.295
  additional property: Energy
    type: PropertyValue
    value: 0.275
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.28
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.108
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.485
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Don Giovanni, K. 527, Act 1: "Manco male è partita" (Don Giovanni, Leporello, Zerlina, Masetto)
type: MusicRecording
duration: PT1M56S
duration ms: 116560
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Otto Klemperer
by artist: Mirella Freni
by artist: Nicolai Ghiaurov
by artist: Paolo Montarsolo
by artist: Walter Berry
by artist: New Philharmonia Orchestra
in album: Mozart: Don Giovanni, K. 527 (Remastered)
  type: MusicAlbum
  date published: 2023-11-01
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2300876
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:54:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x15ae9d8e1e1836100ed9615a3feae1656da85ec139a73a81b9fb09e4c16c1cfd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300876
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ae9d8e1e1836100ed9615a3feae1656da85ec139a73a81b9fb09e4c16c1cfd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300876 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Mozart: Don Giovanni, K. 527, Act 1: "Manco male è partita" (Don Giovanni, Leporello, Zerlina, Masetto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.99
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.651
  additional property: Energy
    type: PropertyValue
    value: 0.412
  additional property: Speechiness
    type: PropertyValue
    value: 0.505
  additional property: Acousticness
    type: PropertyValue
    value: 0.885
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.505
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.952
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Don Giovanni, K. 527, Act 1: "Ho capito, signor, sì!" (Masetto)
type: MusicRecording
duration: PT1M45S
duration ms: 105240
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Otto Klemperer
by artist: Paolo Montarsolo
by artist: New Philharmonia Orchestra
in album: Mozart: Don Giovanni, K. 527 (Remastered)
  type: MusicAlbum
  date published: 2023-11-01
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2300877
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:13:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa12a1d539f9cd4b50e43639a9ebc9d4d8e54095474e5ef8424bd39a4acbe2e0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300877
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12a1d539f9cd4b50e43639a9ebc9d4d8e54095474e5ef8424bd39a4acbe2e0c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300877 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Mozart: Don Giovanni, K. 527, Act 1: "Ho capito, signor, sì!" (Masetto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.978
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.51
  additional property: Energy
    type: PropertyValue
    value: 0.397
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.164
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.594
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.003
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Don Giovanni, K. 527, Act 1: "Alfin siam liberati" (Don Giovanni, Zerlina)
type: MusicRecording
duration: PT1M50S
duration ms: 110746
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Otto Klemperer
by artist: Mirella Freni
by artist: Nicolai Ghiaurov
by artist: New Philharmonia Orchestra
in album: Mozart: Don Giovanni, K. 527 (Remastered)
  type: MusicAlbum
  date published: 2023-11-01
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2300878
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:17:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc013169638e1c183747f550ebcb1787dfb5ec1ec41776cccc696635491899f90
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300878
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc013169638e1c183747f550ebcb1787dfb5ec1ec41776cccc696635491899f90. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2300878 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Mozart: Don Giovanni, K. 527, Act 1: "Alfin siam liberati" (Don Giovanni, Zerlina)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.84
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.555
  additional property: Energy
    type: PropertyValue
    value: 0.15
  additional property: Speechiness
    type: PropertyValue
    value: 0.377
  additional property: Acousticness
    type: PropertyValue
    value: 0.939
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.149
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.277
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.875
  additional property: Key Name
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by artist: Mirella Freni
by artist: Nicolai Ghiaurov
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Mozart: Die Zauberflöte, K. 620
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Glinka: A Life for the Tsar (Arr. N. Rimsky-Korsakov)
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Berlioz: Grande messe des morts, Op. 5, H. 75 "Requiem" (Live)
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J.S. Bach: Mass in B Minor, BWV 232
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Great Verdi Voices
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Nicolai Gedda (Live)
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Liebermann: Die Schule der Frauen (Live)
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O Helga Natt
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  subject of: OpenTimestamps Proof of Existence
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T12:24:41Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Alceste, Wq. 44 (Excerpts): Divinités du Styx
track: Orfeo ed Euridice, Wq. 30 (Excerpts): Ah, se intorno a quest'urna funestra
track: Alceste, Wq. 44 (Excerpts): Vivez, aimez des jours
track: Orfeo ed Euridice, Wq. 30 (Excerpts): Chiamo il mio ben così
track: Alceste, Wq. 44 (Excerpts): Parez vos fronts de fleurs nouvelles
track: Orfeo ed Euridice, Wq. 30 (Excerpts): Gli sguardi trattieni
track: Alceste, Wq. 44 (Excerpts): Vivre sans toi
track: Orfeo ed Euridice, Wq. 30 (Excerpts): Dance of the Blessed Spirits
track: Alceste, Wq. 44 (Excerpts): Recois, Dieu bienfaisant
track: Orfeo ed Euridice, Wq. 30 (Excerpts): Vieni appange il tuo consorte
track: Alceste, Wq. 44 (Excerpts): A mes amis
track: Orfeo ed Euridice, Wq. 30 (Excerpts): Che fiero momento
track: Iphigénie en Tauride, Wq. 46 (Excerpts): Des noirs pressentiments
track: Orfeo ed Euridice, Wq. 30 (Excerpts): Che faro senza Euridice?
track: Iphigénie en Tauride, Wq. 46 (Excerpts): Patrie infortunée
track: Orfeo ed Euridice, Wq. 30 (Excerpts): Trionfi amore
track: Iphigénie en Tauride, Wq. 46 (Excerpts): Et tu prétends encore
track: Paride ed Elena, Wq. 39 (Excerpts): Overture
track: Iphigénie en Tauride, Wq. 46 (Excerpts): Divinité de grandes âmes
track: Paride ed Elena, Wq. 39 (Excerpts): Non sdegnare, o bella Venere
track: Iphigénie en Tauride, Wq. 46 (Excerpts): Non, cet affreux devoir
track: Iphigénie en Tauride, Wq. 46 (Excerpts): O Diane, sois-nous propice
track: Iphigénie en Tauride, Wq. 46 (Excerpts): Les Dieux longtemps en courroux
track: Le cinesi, Wq. 18 (Excerpts): Son lungi e non mi brami
track: Le cinesi, Wq. 18 (Excerpts): Voli il piede in lieti giri

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date published: 2026-07-30T14:36:16Z

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Orfeo ed Euridice, Wq. 30 (Excerpts): Ah, se intorno a quest'urna funestra
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Alceste, Wq. 44 (Excerpts): Vivez, aimez des jours
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Orfeo ed Euridice, Wq. 30 (Excerpts): Chiamo il mio ben così
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Alceste, Wq. 44 (Excerpts): Parez vos fronts de fleurs nouvelles
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Orfeo ed Euridice, Wq. 30 (Excerpts): Gli sguardi trattieni
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subject of: OpenTimestamps Proof of Existence
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Alceste, Wq. 44 (Excerpts): Vivre sans toi
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Orfeo ed Euridice, Wq. 30 (Excerpts): Dance of the Blessed Spirits
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Alceste, Wq. 44 (Excerpts): Recois, Dieu bienfaisant
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Orfeo ed Euridice, Wq. 30 (Excerpts): Vieni appange il tuo consorte
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bc8bcb0f9dfe4460047b37ba7b0b43157e68fc44a35af2ca411026bf977ed2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB956439132 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Vieni appange il tuo consorte
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Alceste, Wq. 44 (Excerpts): A mes amis
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duration: PT2M41S
duration ms: 161600
explicit: false
by artist: Christoph Willibald Gluck
by artist: Bavarian Radio Symphony Orchestra
by artist: Serge Baudo
by artist: Nicolai Gedda
by artist: Jessye Norman
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 3
genre: classical
genre: opera
isrc code: DEB958202721
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB958202721
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482055020280374c348d75c42696dc2be318a3f98a65510c482f78542149f883. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB958202721 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Alceste, Wq. 44 (Excerpts): A mes amis
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Orfeo ed Euridice, Wq. 30 (Excerpts): Che fiero momento
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duration: PT3M5S
duration ms: 185760
explicit: false
by artist: Christoph Willibald Gluck
by artist: Cappella Coloniensis
by artist: Ferdinand Leitner
by artist: Elisabeth Söderström
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 2
genre: classical
genre: opera
isrc code: DEB956439134
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a72da4ecc4c55bad91829c8f1d6648bd4242e446b1dbd550b65742f41810dbd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB956439134 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Che fiero momento
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Iphigénie en Tauride, Wq. 46 (Excerpts): Des noirs pressentiments
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duration: PT2M27S
duration ms: 147666
explicit: false
by artist: Christoph Willibald Gluck
by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Dietrich Fischer-Dieskau
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 4
genre: classical
genre: opera
isrc code: DEB952020016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB952020016
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e27298b64a8dd64e35f4c079a15f03bf21c835e827575807e432dcd64949f34. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB952020016 — a six-check JSON result.
  date published: 2026-07-30T18:23:33Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): Des noirs pressentiments
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Orfeo ed Euridice, Wq. 30 (Excerpts): Che faro senza Euridice?
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duration: PT4M3S
duration ms: 243226
explicit: false
by artist: Christoph Willibald Gluck
by artist: Cappella Coloniensis
by artist: Ferdinand Leitner
by artist: Dietrich Fischer-Dieskau
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 4
genre: classical
genre: opera
isrc code: DEB956439136
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085057511b1d50304ed322397d376174b97d89691e67f870009d4ff53ee3993c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB956439136 — a six-check JSON result.
  date published: 2026-07-31T02:51:48Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Che faro senza Euridice?
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Iphigénie en Tauride, Wq. 46 (Excerpts): Patrie infortunée
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duration: PT4M35S
duration ms: 275640
explicit: false
by artist: Christoph Willibald Gluck
by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Pilar Lorengar
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 9
genre: classical
genre: opera
isrc code: DEB952020005
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB952020005
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca083efe7f40f101ae8af86b11410317d8a1ef94f5073177549450881c4f774f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB952020005 — a six-check JSON result.
  date published: 2026-07-29T19:35:34Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): Patrie infortunée
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Orfeo ed Euridice, Wq. 30 (Excerpts): Trionfi amore
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duration: PT3M15S
duration ms: 195013
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by artist: Christoph Willibald Gluck
by artist: Cappella Coloniensis
by artist: Ferdinand Leitner
by artist: Elisabeth Söderström
by artist: Ruth-Margret Putz
by artist: Dietrich Fischer-Dieskau
by artist: Kölner Rundfunkchor
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 2
genre: classical
genre: opera
isrc code: DEB952020012
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4902c18152621f956e16a1e7ee128f6b129c69b25b8846184a5fcde2ceba17b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB952020012 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Trionfi amore
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Iphigénie en Tauride, Wq. 46 (Excerpts): Et tu prétends encore
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duration ms: 194360
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by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Franco Bonisolli
by artist: Walton Groenroos
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 4
genre: classical
genre: opera
isrc code: DEB952020006
additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:38:45Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): Et tu prétends encore
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Paride ed Elena, Wq. 39 (Excerpts): Overture
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duration: PT4M19S
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by artist: Christoph Willibald Gluck
by artist: Vienna Radio Symphony Orchestra
by artist: Anthony Spiri
by artist: Lothar Zagrosek
in album: Gluck: Opera Gala
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popularity: 2
genre: classical
genre: opera
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Paride ed Elena, Wq. 39 (Excerpts): Overture
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Iphigénie en Tauride, Wq. 46 (Excerpts): Divinité de grandes âmes
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duration: PT2M8S
duration ms: 128613
explicit: false
by artist: Christoph Willibald Gluck
by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Franco Bonisolli
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 3
genre: classical
genre: opera
isrc code: DEB952020007
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T20:11:13Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): Divinité de grandes âmes
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Paride ed Elena, Wq. 39 (Excerpts): Non sdegnare, o bella Venere
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duration: PT3M26S
duration ms: 206493
explicit: false
by artist: Christoph Willibald Gluck
by artist: Vienna Radio Symphony Orchestra
by artist: Anthony Spiri
by artist: Lothar Zagrosek
by artist: Anne Tedards
by artist: Arnold Schoenberg Chor
by artist: Chor des Osterreichischen Rundfunks
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 2
genre: classical
genre: opera
isrc code: DEB958411802
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T19:53:13Z
audio: Paride ed Elena, Wq. 39 (Excerpts): Non sdegnare, o bella Venere
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Iphigénie en Tauride, Wq. 46 (Excerpts): Non, cet affreux devoir
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duration ms: 270173
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by artist: Christoph Willibald Gluck
by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Pilar Lorengar
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  type: MusicAlbum
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popularity: 3
genre: classical
genre: opera
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:50:11Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): Non, cet affreux devoir
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Iphigénie en Tauride, Wq. 46 (Excerpts): O Diane, sois-nous propice
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popularity: 36
genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): O Diane, sois-nous propice
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Iphigénie en Tauride, Wq. 46 (Excerpts): Les Dieux longtemps en courroux
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popularity: 15
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Le cinesi, Wq. 18 (Excerpts): Son lungi e non mi brami
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Le cinesi, Wq. 18 (Excerpts): Voli il piede in lieti giri
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Mozart: Idomeneo
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Great Swedish Singers: Nicolai Gedda (1960-1976)
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Schumann: Die Großen Chorwerke / The Great Choral Works
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Weber: Euryanthe
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T21:51:49Z
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track: Euryanthe, Act I: No. 1. Introduktion "Dem Frieden Heil!" (Chor)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T19:53:13Z
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  audio: Euryanthe, Act I: No. 2. Romanze "Unter blüh'nden Mandelbäumen" (Adolar)
track: Euryanthe, Act I: No. 4. Terzett mit Chor "Wohlan! Du kennst mein herrlich Eigentum" (Lysiart, Adolar, König, Männerchor)
track: Euryanthe, Act I: No. 9. Finale "Jubeltöne, Heldensöhne" (Chor, Euryanthe, Eglantine, Lysiart)
track: Euryanthe, Act I: No. 9. Finale "Fröhliche Klänge, Tänze, Gesänge" (Euryanthe, Chor, Eglantine, Rudolf, Lysiart)
track: Euryanthe, Act II: No. 10. Szene und Arie "Wo berg' ich mich?" - "Schweigt, glüh'nden Sehnens wilde Triebe" (Lysiart)
track: Euryanthe, Act III: No. 18. Jägerchor "Die Tale dampfen, die Höhen glüh'n" (Männerchor) - Rezitativ "O seht! Die Schlang' erlegt von starker Hand!" [König, Männerchor]

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date published: 2026-07-08T03:22:41Z

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Euryanthe, Act I: No. 4. Terzett mit Chor "Wohlan! Du kennst mein herrlich Eigentum" (Lysiart, Adolar, König, Männerchor)
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by artist: Tom Krause
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38b2d4275840980dcd1fbab92cd846b399f63cfd082f5e17f91045e90a23f23. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305898 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Euryanthe, Act I: No. 4. Terzett mit Chor "Wohlan! Du kennst mein herrlich Eigentum" (Lysiart, Adolar, König, Männerchor)
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    type: PropertyValue
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  additional property: Danceability
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    value: 0.327
  additional property: Energy
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.344
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.424
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Euryanthe, Act I: No. 9. Finale "Jubeltöne, Heldensöhne" (Chor, Euryanthe, Eglantine, Lysiart)
type: MusicRecording
duration: PT4M32S
duration ms: 272426
explicit: false
by artist: Carl Maria von Weber
by artist: Staatskapelle Dresden
by artist: Marek Janowski
by artist: Rundfunkchor Berlin
by artist: Jessye Norman
by artist: Rita Hunter
by artist: Tom Krause
by artist: Horst Neumann
in album: Weber: Euryanthe
  type: MusicAlbum
  date published: 2013-04-04
popularity: 3
genre: classical
genre: opera
isrc code: NLY331305905
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:13:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4fd315ad613b907b129755f07da783d03365af4125116bf24481d5123461a8b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960435
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960435
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305905
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T16:33:26Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd315ad613b907b129755f07da783d03365af4125116bf24481d5123461a8b4. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305905 — a six-check JSON result.
  date published: 2026-07-31T16:33:26Z
audio: Euryanthe, Act I: No. 9. Finale "Jubeltöne, Heldensöhne" (Chor, Euryanthe, Eglantine, Lysiart)
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  additional property: Tempo (BPM)
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    value: 143.437
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.391
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.478
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.175
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.829
  additional property: Key Name
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  additional property: Mode Name
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Euryanthe, Act I: No. 9. Finale "Fröhliche Klänge, Tänze, Gesänge" (Euryanthe, Chor, Eglantine, Rudolf, Lysiart)
type: MusicRecording
duration: PT4M29S
duration ms: 269200
explicit: false
by artist: Carl Maria von Weber
by artist: Staatskapelle Dresden
by artist: Marek Janowski
by artist: Rundfunkchor Berlin
by artist: Jessye Norman
by artist: Rita Hunter
by artist: Tom Krause
by artist: Horst Neumann
by artist: Harald Neukirch
in album: Weber: Euryanthe
  type: MusicAlbum
  date published: 2013-04-04
popularity: 2
genre: classical
genre: opera
isrc code: NLY331305906
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:08:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x143bc2b11fa19da652a8a37365beb1af0d300292b179fb22835ab0bf59f28014
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305906
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143bc2b11fa19da652a8a37365beb1af0d300292b179fb22835ab0bf59f28014. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305906 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Euryanthe, Act I: No. 9. Finale "Fröhliche Klänge, Tänze, Gesänge" (Euryanthe, Chor, Eglantine, Rudolf, Lysiart)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.679
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.355
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.082
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.092
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.562
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Euryanthe, Act II: No. 10. Szene und Arie "Wo berg' ich mich?" - "Schweigt, glüh'nden Sehnens wilde Triebe" (Lysiart)
type: MusicRecording
duration: PT10M32S
duration ms: 632626
explicit: false
by artist: Carl Maria von Weber
by artist: Staatskapelle Dresden
by artist: Marek Janowski
by artist: Tom Krause
in album: Weber: Euryanthe
  type: MusicAlbum
  date published: 2013-04-04
popularity: 2
genre: classical
genre: opera
isrc code: NLY331305907
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:10:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c4615a396e2033ca0be76e060fdd0f78303eb1258a32e048f04f4befe31d8fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305907
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4615a396e2033ca0be76e060fdd0f78303eb1258a32e048f04f4befe31d8fb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305907 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Euryanthe, Act II: No. 10. Szene und Arie "Wo berg' ich mich?" - "Schweigt, glüh'nden Sehnens wilde Triebe" (Lysiart)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.068
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.236
  additional property: Energy
    type: PropertyValue
    value: 0.184
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.066
  additional property: Liveness
    type: PropertyValue
    value: 0.345
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.748
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Euryanthe, Act III: No. 18. Jägerchor "Die Tale dampfen, die Höhen glüh'n" (Männerchor) - Rezitativ "O seht! Die Schlang' erlegt von starker Hand!" [König, Männerchor]
type: MusicRecording
duration: PT2M56S
duration ms: 176000
explicit: false
by artist: Carl Maria von Weber
by artist: Staatskapelle Dresden
by artist: Marek Janowski
by artist: MDR Leipzig Radio Chorus
by artist: Siegfried Vogel
by artist: Horst Neumann
in album: Weber: Euryanthe
  type: MusicAlbum
  date published: 2013-04-04
popularity: 3
genre: classical
genre: opera
isrc code: NLY331305920
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:27:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75a302fada306b7dda02e534b46c2bb6960794d0aa821913591c3a2d2a8de1d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305920
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a302fada306b7dda02e534b46c2bb6960794d0aa821913591c3a2d2a8de1d3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331305920 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Euryanthe, Act III: No. 18. Jägerchor "Die Tale dampfen, die Höhen glüh'n" (Männerchor) - Rezitativ "O seht! Die Schlang' erlegt von starker Hand!" [König, Männerchor]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.287
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.475
  additional property: Energy
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    value: 0.341
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
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    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.496
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.215
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.334
  additional property: Key Name
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    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Debussy: Pelléas et Mélisande, L. 88 (Live) [Orfeo d'Or]
type: MusicAlbum
date published: 2016-01-01

Pfitzner: Palestrina
type: MusicAlbum
date published: 1989-01-01
track: Palestrina - Musical Legend In Three Acts: Prelude to Act I. Ruhig (Andante)
  type: MusicRecording
  duration: PT6M4S
  duration ms: 364706
  explicit: false
  by artist: Hans Pfitzner
  by artist: Bavarian Radio Symphony Orchestra
  by artist: Rafael Kubelík
  in album: Pfitzner: Palestrina
    type: MusicAlbum
    date published: 1989-01-01
  popularity: 6
  genre: german-romanticism
  genre: early-modern-classical
  genre: post-romantic-era
  genre: german-opera
  isrc code: DEF057330401
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T23:05:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdbe9b4504df735056f760b9403c39151d1d841a7ae377052ef25129c36cfe2a9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960327
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960327
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330401
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T00:26:26Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe9b4504df735056f760b9403c39151d1d841a7ae377052ef25129c36cfe2a9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330401 — a six-check JSON result.
    date published: 2026-07-31T00:26:26Z
  audio: Palestrina - Musical Legend In Three Acts: Prelude to Act I. Ruhig (Andante)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.705
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.149
    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
      type: PropertyValue
      value: 0.946
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.827
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.032
    additional property: Loudness (dB)
      type: PropertyValue
      value: -32.129
    additional property: Key Name
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      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Palestrina - Musical Legend In Three Acts / Act 1: Schönste, ungnäd'ge Dame
  type: MusicRecording
  duration: PT6M40S
  duration ms: 400760
  explicit: false
  by artist: Hans Pfitzner
  by artist: Brigitte Fassbaender
  by artist: Helen Donath
  by artist: Bavarian Radio Symphony Orchestra
  by artist: Rafael Kubelík
  in album: Pfitzner: Palestrina
    type: MusicAlbum
    date published: 1989-01-01
  popularity: 2
  genre: german-romanticism
  genre: early-modern-classical
  genre: post-romantic-era
  genre: german-opera
  isrc code: DEF057330402
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T16:04:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xba5619d79d8f83e3ce555074004187d52f1039044bbc834050e6ea50b5374ee9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960430
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960430
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330402
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T16:09:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Kienzl: Der Evangelimann [Electrola-Querschnitt]
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Stolz: Die schönsten Melodien [Best-Loved Melodies]
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  subject of: OpenTimestamps Proof of Existence
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track: In Wien hab' ich einmal ein Mädel geliebt (Wienerlied) - 1992 Remastered Version
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T12:06:10Z
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  subject of: OpenTimestamps Proof of Existence
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track: Zwei Herzen im Dreivierteltakt (Walzerlied aus dem gleichnamigen Tonfilm) - 1992 Remastered Version
track: Ich bin verliebt in meine eigene Frau (Lied aus der Operette "Tanzgräfin") - 1992 Remastered Version
track: Wohin ist das alles, wohin? (Slowfox) - 1992 Remastered Version
track: Wien wird bei Nacht erst schön (Wienerlied) - 1992 Remastered Version
track: Hallo, du süße Klingelfee (Onestep aus der Operette "Tanz ins Glück") - 1992 Remastered Version
track: Ob blond, ob braun, ich liebe Frau'n! - 1992 Remastered Version
track: Oft genügt ein Gläschen Sekt (Langsamer Walzer aus der Operette "Frühlingsparade") - 1992 Remastered Version
track: Auf der Heide blüh'n die letzten Rosen (Lied) - 1992 Remastered Version
track: Musikant, Musikant, wo ist deine Heimat? (Sabogárd! Dombovár!) - 1992 Remastered Version
track: Ich liebe dich! (Lied & Langsamer Walzer aus dem Film "Zauber der Bohème") - 1992 Remastered Version
track: Leutnant warst du einst bei den Husaren (Lied & Marsch aus der Operette "Frühling im Prater") - 1992 Remastered Version
track: Auch du wirst mich einmal betrügen (Slowfox) - 1992 Remastered Version
track: Mein Liebeslied muß ein Walzer sein! (Lied & Walzer aus dem Singspiel "Im weißen Rössl") - 1992 Remastered Version
track: Frühling in Amsterdam - 1992 Remastered Version
track: Ich liebe die Welt (Lied) - 1992 Remastered Version
track: Die ganze Welt ist himmelblau! (Lied & Slowfox aus dem Singspiel "Im weißen Rössl") - 1992 Remastered Version
track: Du bist auf dieser Welt (Lied & Slofox aus der Operette "Frühling im Prater") - 1992 Remastered Version
track: Spiel' auf deiner Geige (Langsamer Walzer aus der Operette "Venus in Seide") - 1992 Remastered Version
track: Du sollst der Kaiser meiner Seele sein (Lied aus der Operette "Der Favorit") - 1992 Remastered Version
track: Vor meinem Vaterhaus (Lied im Volkston) - 1992 Remastered Version
track: Ungeküßt sollst du nicht schlafen geh'n (Lied & Slowfox) - 1992 Remastered Version
track: Adieu, mein kleiner Gardeoffizier (Marsch) - 1992 Remastered Version
track: Angelo! Angelo! (Lied) - 1992 Remastered Version

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date published: 2026-08-01T01:44:32Z

An so einem Tag wie heute (Walzerlied aus der Operette "Himmelblaue Träume") - 1992 Remastered Version
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Zwei Herzen im Dreivierteltakt (Walzerlied aus dem gleichnamigen Tonfilm) - 1992 Remastered Version
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subject of: OpenTimestamps Proof of Existence
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Ich bin verliebt in meine eigene Frau (Lied aus der Operette "Tanzgräfin") - 1992 Remastered Version
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x414b91ed290124da5472228afb8cef2485ee06916f3cbb8b00c22e0ba0e1df2d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202085
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414b91ed290124da5472228afb8cef2485ee06916f3cbb8b00c22e0ba0e1df2d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202085 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Ich bin verliebt in meine eigene Frau (Lied aus der Operette "Tanzgräfin") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.36
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.171
  additional property: Energy
    type: PropertyValue
    value: 0.252
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.941
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.036
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.17
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.736
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Wohin ist das alles, wohin? (Slowfox) - 1992 Remastered Version
type: MusicRecording
duration: PT5M59S
duration ms: 359040
explicit: false
by artist: Robert Stolz
by artist: Gottlob Frick
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 3
genre: polka
isrc code: DEA349202068
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:25:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ebaa759f8c8e1763cd182e2ac8a6aa7b8a2aa9fe8d04bfde64107718773d88d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202068
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebaa759f8c8e1763cd182e2ac8a6aa7b8a2aa9fe8d04bfde64107718773d88d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202068 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Wohin ist das alles, wohin? (Slowfox) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.096
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.348
  additional property: Energy
    type: PropertyValue
    value: 0.354
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.012
  additional property: Liveness
    type: PropertyValue
    value: 0.143
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.363
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.198
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Wien wird bei Nacht erst schön (Wienerlied) - 1992 Remastered Version
type: MusicRecording
duration: PT2M58S
duration ms: 178960
explicit: false
by artist: Robert Stolz
by artist: Ursula Reichart
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 4
genre: polka
isrc code: DEA349202069
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:38:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c0da39d396c135e2f70d47af25178c1e230a5c6220356d188b1f9fb613ccbde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960481
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960481
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202069
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0da39d396c135e2f70d47af25178c1e230a5c6220356d188b1f9fb613ccbde. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202069 — a six-check JSON result.
  date published: 2026-07-31T23:51:35Z
audio: Wien wird bei Nacht erst schön (Wienerlied) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.647
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.34
  additional property: Energy
    type: PropertyValue
    value: 0.334
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.941
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.141
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.289
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.662
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Hallo, du süße Klingelfee (Onestep aus der Operette "Tanz ins Glück") - 1992 Remastered Version
type: MusicRecording
duration: PT1M55S
duration ms: 115000
explicit: false
by artist: Robert Stolz
by artist: Harry Friedauer
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202087
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:27:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf797f417493c50e9a2c8991e6cbb0b3bed8221b7f34de2b87fa665f743065460
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202087
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf797f417493c50e9a2c8991e6cbb0b3bed8221b7f34de2b87fa665f743065460. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202087 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Hallo, du süße Klingelfee (Onestep aus der Operette "Tanz ins Glück") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.491
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.618
  additional property: Energy
    type: PropertyValue
    value: 0.544
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.538
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.755
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.759
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ob blond, ob braun, ich liebe Frau'n! - 1992 Remastered Version
type: MusicRecording
duration: PT2M51S
duration ms: 171040
explicit: false
by artist: Robert Stolz
by artist: Nicolai Gedda
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 3
genre: polka
isrc code: DEA349202070
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:34:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51ddfe03027d652e6eac81ed438943d39156e3929b54f4e299bbcf9654cc65cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202070
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ddfe03027d652e6eac81ed438943d39156e3929b54f4e299bbcf9654cc65cd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202070 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Ob blond, ob braun, ich liebe Frau'n! - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.873
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.496
  additional property: Energy
    type: PropertyValue
    value: 0.473
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.922
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.682
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.021
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Oft genügt ein Gläschen Sekt (Langsamer Walzer aus der Operette "Frühlingsparade") - 1992 Remastered Version
type: MusicRecording
duration: PT3M25S
duration ms: 205000
explicit: false
by artist: Robert Stolz
by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202088
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T01:40:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4b1658d6f22bd28a119c610b228a9217f981818ec32d9c606a302fb54fd45caa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960497
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960497
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202088
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T02:22:04Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1658d6f22bd28a119c610b228a9217f981818ec32d9c606a302fb54fd45caa. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202088 — a six-check JSON result.
  date published: 2026-08-01T02:22:04Z
audio: Oft genügt ein Gläschen Sekt (Langsamer Walzer aus der Operette "Frühlingsparade") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.953
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.252
  additional property: Energy
    type: PropertyValue
    value: 0.276
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.93
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.306
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.129
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.367
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Auf der Heide blüh'n die letzten Rosen (Lied) - 1992 Remastered Version
type: MusicRecording
duration: PT3M49S
duration ms: 229026
explicit: false
by artist: Robert Stolz
by artist: Gottlob Frick
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 4
genre: polka
isrc code: DEA349202071
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T17:35:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3699800b4c9b515948bd5817f9eec150dd686268a433d26d9f26744bff76bda
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960288
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960288
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202071
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:41:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3699800b4c9b515948bd5817f9eec150dd686268a433d26d9f26744bff76bda. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202071 — a six-check JSON result.
  date published: 2026-07-30T17:41:38Z
audio: Auf der Heide blüh'n die letzten Rosen (Lied) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.504
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.308
  additional property: Energy
    type: PropertyValue
    value: 0.349
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.045
  additional property: Liveness
    type: PropertyValue
    value: 0.172
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.313
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.848
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Musikant, Musikant, wo ist deine Heimat? (Sabogárd! Dombovár!) - 1992 Remastered Version
type: MusicRecording
duration: PT3M57S
duration ms: 237906
explicit: false
by artist: Robert Stolz
by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 3
genre: polka
isrc code: DEA349202072
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:52:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x227eadba2a54c0efb9dfd1ee8926e006206e00cc52f0a400b6a27203dc9e35cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202072
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227eadba2a54c0efb9dfd1ee8926e006206e00cc52f0a400b6a27203dc9e35cd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202072 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Musikant, Musikant, wo ist deine Heimat? (Sabogárd! Dombovár!) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.933
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.326
  additional property: Energy
    type: PropertyValue
    value: 0.227
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.204
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.233
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.455
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ich liebe dich! (Lied & Langsamer Walzer aus dem Film "Zauber der Bohème") - 1992 Remastered Version
type: MusicRecording
duration: PT4M34S
duration ms: 274066
explicit: false
by artist: Robert Stolz
by artist: Nicolai Gedda
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 3
genre: polka
isrc code: DEA349202073
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T08:33:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14bd419df0bdc6e3845cb70b16215eb811d6c2e08bb7872bd704104c8e2c7132
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960370
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960370
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202073
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:38:45Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bd419df0bdc6e3845cb70b16215eb811d6c2e08bb7872bd704104c8e2c7132. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202073 — a six-check JSON result.
  date published: 2026-07-31T08:38:45Z
audio: Ich liebe dich! (Lied & Langsamer Walzer aus dem Film "Zauber der Bohème") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.054
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.241
  additional property: Energy
    type: PropertyValue
    value: 0.342
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.932
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.403
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.247
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.053
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Leutnant warst du einst bei den Husaren (Lied & Marsch aus der Operette "Frühling im Prater") - 1992 Remastered Version
type: MusicRecording
duration: PT3M35S
duration ms: 215960
explicit: false
by artist: Robert Stolz
by artist: Dagmar Koller
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202091
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:06:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac49919821f210a400f11219c586ecb894fb5255097d3529c76e8c22fbea3917
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960430
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960430
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202091
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T16:09:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac49919821f210a400f11219c586ecb894fb5255097d3529c76e8c22fbea3917. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202091 — a six-check JSON result.
  date published: 2026-07-31T16:09:41Z
audio: Leutnant warst du einst bei den Husaren (Lied & Marsch aus der Operette "Frühling im Prater") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.853
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.503
  additional property: Energy
    type: PropertyValue
    value: 0.308
  additional property: Speechiness
    type: PropertyValue
    value: 0.075
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.507
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.302
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Auch du wirst mich einmal betrügen (Slowfox) - 1992 Remastered Version
type: MusicRecording
duration: PT4M13S
duration ms: 253960
explicit: false
by artist: Robert Stolz
by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 3
genre: polka
isrc code: DEA349202074
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T02:18:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d7bdd71aa511290562561c1675a8aa773550ceaab3427443cfc7f0b78c0ff1e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960337
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960337
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202074
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:51:48Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7bdd71aa511290562561c1675a8aa773550ceaab3427443cfc7f0b78c0ff1e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202074 — a six-check JSON result.
  date published: 2026-07-31T02:51:48Z
audio: Auch du wirst mich einmal betrügen (Slowfox) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.669
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.249
  additional property: Energy
    type: PropertyValue
    value: 0.228
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.31
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.134
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.392
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mein Liebeslied muß ein Walzer sein! (Lied & Walzer aus dem Singspiel "Im weißen Rössl") - 1992 Remastered Version
type: MusicRecording
duration: PT3M57S
duration ms: 237026
explicit: false
by artist: Robert Stolz
by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202093
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T00:18:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66c764188fb234399dded8d0b29a5f92735afc837df219931da83e3a40278cbd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960489
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960489
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202093
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T00:40:43Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c764188fb234399dded8d0b29a5f92735afc837df219931da83e3a40278cbd. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202093 — a six-check JSON result.
  date published: 2026-08-01T00:40:43Z
audio: Mein Liebeslied muß ein Walzer sein! (Lied & Walzer aus dem Singspiel "Im weißen Rössl") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.827
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.405
  additional property: Energy
    type: PropertyValue
    value: 0.353
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.896
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.275
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.28
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.715
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Frühling in Amsterdam - 1992 Remastered Version
type: MusicRecording
duration: PT1M57S
duration ms: 117960
explicit: false
by artist: Robert Stolz
by artist: Ursula Reichart
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202076
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:44:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92b09bd6a57dc03dc4d7339eac1a7e0f507ad5ed7bbc27ff9ed3d3ba69b2b593
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202076
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b09bd6a57dc03dc4d7339eac1a7e0f507ad5ed7bbc27ff9ed3d3ba69b2b593. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202076 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Frühling in Amsterdam - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.315
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.537
  additional property: Energy
    type: PropertyValue
    value: 0.485
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.787
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.274
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.749
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.308
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ich liebe die Welt (Lied) - 1992 Remastered Version
type: MusicRecording
duration: PT3M50S
duration ms: 230933
explicit: false
by artist: Robert Stolz
by artist: Nicolai Gedda
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202077
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T00:04:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8050b08ca01fb0aab1ad6b0c113eaf63e8bf5f3a9725c75d58c6b7c50606cb43
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202077
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8050b08ca01fb0aab1ad6b0c113eaf63e8bf5f3a9725c75d58c6b7c50606cb43. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202077 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Ich liebe die Welt (Lied) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.822
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.326
  additional property: Energy
    type: PropertyValue
    value: 0.34
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.387
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.434
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.34
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die ganze Welt ist himmelblau! (Lied & Slowfox aus dem Singspiel "Im weißen Rössl") - 1992 Remastered Version
type: MusicRecording
duration: PT2M48S
duration ms: 168933
explicit: false
by artist: Robert Stolz
by artist: Ursula Reichart
by artist: Harry Friedauer
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202095
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:10:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1cd9967447cef83d1ab6c9a8bfe643840daeb9b15dd32b1b0483ac8eda4c915
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202095
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cd9967447cef83d1ab6c9a8bfe643840daeb9b15dd32b1b0483ac8eda4c915. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202095 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Die ganze Welt ist himmelblau! (Lied & Slowfox aus dem Singspiel "Im weißen Rössl") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.026
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.318
  additional property: Energy
    type: PropertyValue
    value: 0.385
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.864
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.29
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.422
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.443
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Du bist auf dieser Welt (Lied & Slofox aus der Operette "Frühling im Prater") - 1992 Remastered Version
type: MusicRecording
duration: PT4M3S
duration ms: 243106
explicit: false
by artist: Robert Stolz
by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202078
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T22:19:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb59a2d3212ab7ae72f292fcdac327a921e7613e17fd2bc6b330d1194acc47d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202078
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb59a2d3212ab7ae72f292fcdac327a921e7613e17fd2bc6b330d1194acc47d1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202078 — a six-check JSON result.
  date published: 2026-07-31T23:30:38Z
audio: Du bist auf dieser Welt (Lied & Slofox aus der Operette "Frühling im Prater") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.482
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.259
  additional property: Energy
    type: PropertyValue
    value: 0.335
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.194
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.146
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.71
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Spiel' auf deiner Geige (Langsamer Walzer aus der Operette "Venus in Seide") - 1992 Remastered Version
type: MusicRecording
duration: PT4M3S
duration ms: 243000
explicit: false
by artist: Robert Stolz
by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202096
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:04:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24241579d0d6154944fd77e57d166484bfaf8aad9da17cb1bbcfc5a16081aba2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202096
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24241579d0d6154944fd77e57d166484bfaf8aad9da17cb1bbcfc5a16081aba2. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202096 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Spiel' auf deiner Geige (Langsamer Walzer aus der Operette "Venus in Seide") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.863
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.289
  additional property: Energy
    type: PropertyValue
    value: 0.331
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.911
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.268
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.145
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.596
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Du sollst der Kaiser meiner Seele sein (Lied aus der Operette "Der Favorit") - 1992 Remastered Version
type: MusicRecording
duration: PT3M29S
duration ms: 209066
explicit: false
by artist: Robert Stolz
by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 3
genre: polka
isrc code: DEA349202079
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:23:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc0102886457374e85a36270235a3ff8b4cd854a487ac211e1ec26d2a7034d40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202079
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0102886457374e85a36270235a3ff8b4cd854a487ac211e1ec26d2a7034d40. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202079 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Du sollst der Kaiser meiner Seele sein (Lied aus der Operette "Der Favorit") - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.721
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.187
  additional property: Energy
    type: PropertyValue
    value: 0.332
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.067
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.078
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.403
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Vor meinem Vaterhaus (Lied im Volkston) - 1992 Remastered Version
type: MusicRecording
duration: PT5M49S
duration ms: 349040
explicit: false
by artist: Robert Stolz
by artist: Gottlob Frick
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202097
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:35:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4cbc90456f49a022a35b95829802b14d3108c8d09343592956878d9cc09095e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202097
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbc90456f49a022a35b95829802b14d3108c8d09343592956878d9cc09095e8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202097 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Vor meinem Vaterhaus (Lied im Volkston) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.942
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.304
  additional property: Energy
    type: PropertyValue
    value: 0.394
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.207
  additional property: Liveness
    type: PropertyValue
    value: 0.349
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.284
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.71
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ungeküßt sollst du nicht schlafen geh'n (Lied & Slowfox) - 1992 Remastered Version
type: MusicRecording
duration: PT3M11S
duration ms: 191893
explicit: false
by artist: Robert Stolz
by artist: Harry Friedauer
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 3
genre: polka
isrc code: DEA349202080
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:42:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb77c95cf5ca75bd41e8f1d09e0a1c9ec17cee057b1d36c6cc44e4298e1eb103e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202080
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77c95cf5ca75bd41e8f1d09e0a1c9ec17cee057b1d36c6cc44e4298e1eb103e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202080 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Ungeküßt sollst du nicht schlafen geh'n (Lied & Slowfox) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.749
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.327
  additional property: Energy
    type: PropertyValue
    value: 0.322
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.879
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.202
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.487
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.298
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Adieu, mein kleiner Gardeoffizier (Marsch) - 1992 Remastered Version
type: MusicRecording
duration: PT5M10S
duration ms: 310493
explicit: false
by artist: Robert Stolz
by artist: Ursula Reichart
by artist: Symphonie-Orchester Graunke
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 4
genre: polka
isrc code: DEA349202098
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-30T11:54:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x00301af79d0a8d1d6463174d595832f255a81dbbbf716d498a11e5eb994168e6
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 960254
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960254
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202098
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:06:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00301af79d0a8d1d6463174d595832f255a81dbbbf716d498a11e5eb994168e6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202098 — a six-check JSON result.
  date published: 2026-07-30T12:06:10Z
audio: Adieu, mein kleiner Gardeoffizier (Marsch) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.507
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Angelo! Angelo! (Lied) - 1992 Remastered Version
type: MusicRecording
duration: PT3M20S
duration ms: 200040
explicit: false
by artist: Robert Stolz
by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
in album: Stolz: Die schönsten Melodien [Best-Loved Melodies]
  type: MusicAlbum
  date published: 1992-08-10
popularity: 2
genre: polka
isrc code: DEA349202081
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:56:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ae3e6ca0b25aec85aefe0145d7e51e5ab3514cd8c12077398ea274e3711a70b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202081
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae3e6ca0b25aec85aefe0145d7e51e5ab3514cd8c12077398ea274e3711a70b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349202081 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Angelo! Angelo! (Lied) - 1992 Remastered Version
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 107.042
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.236
  additional property: Energy
    type: PropertyValue
    value: 0.331
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.722
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  additional property: Mode Name
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Lehár: Zigeunerliebe, Giuditta, Der Zarewitsch
type: MusicAlbum
date published: 2013-08-23

Peterson-Berger: The Nicolai Gedda Collection of Swedish Song
type: MusicAlbum
date published: 2012-04-01

Peterson-Berger: Songs, Piano & Violin Music
type: MusicAlbum
date published: 2012-04-01
track: Frösöblomster I, Op. 16: No. 4, Till rosorna
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189560
  explicit: false
  by artist: Wilhelm Peterson-Berger
  by artist: Esther Bodin-Karpe
  in album: Peterson-Berger: Songs, Piano & Violin Music
    type: MusicAlbum
    date published: 2012-04-01
  isrc code: SEAQB9100102
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T08:27:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x565820861ab85c537af6f9d8adf1d700cd698807f47982ad0e81a811e1fb0199
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAQB9100102
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565820861ab85c537af6f9d8adf1d700cd698807f47982ad0e81a811e1fb0199. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAQB9100102 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Frösöblomster I, Op. 16: No. 4, Till rosorna
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    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.364
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.993
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.926
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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      value: 0.08
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.81
    additional property: Key Name
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      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Frösöblomster I, Op. 16: No. 6, Vid Frösö kyrka
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236933
  explicit: false
  by artist: Wilhelm Peterson-Berger
  by artist: Esther Bodin-Karpe
  in album: Peterson-Berger: Songs, Piano & Violin Music
    type: MusicAlbum
    date published: 2012-04-01
  isrc code: SEAQB9100104
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T12:42:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6f76b9243bcd69b6fb1928b28f221546958b9958386560f4cfa6b20852309c45
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAQB9100104
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f76b9243bcd69b6fb1928b28f221546958b9958386560f4cfa6b20852309c45. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAQB9100104 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Frösöblomster I, Op. 16: No. 6, Vid Frösö kyrka
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.58
    additional property: Energy
      type: PropertyValue
      value: 0.01
    additional property: Speechiness
      type: PropertyValue
      value: 0.098
    additional property: Acousticness
      type: PropertyValue
      value: 0.994
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.907
    additional property: Liveness
      type: PropertyValue
      value: 0.089
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.084
    additional property: Loudness (dB)
      type: PropertyValue
      value: -29.533
    additional property: Key Name
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    additional property: Mode Name
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Sjogren: Songs, Vol. 3
type: MusicAlbum
date published: 2012-04-01

Lehár: Die lustige Witwe, Schön ist die Welt
type: MusicAlbum
date published: 2013-08-23

Cornelius: The Barber of Bagdad (Der Barbier von Bagdad)
type: MusicAlbum
date published: 2024-12-20
track: Cornelius: Der Barbier von Bagdad: Ouvertüre (Orch. Liszt & Mottl)
  type: MusicRecording
  duration: PT7M14S
  duration ms: 434600
  explicit: false
  by artist: Peter Cornelius
  by artist: Erich Leinsdorf
  by artist: Philharmonia Orchestra
  in album: Cornelius: The Barber of Bagdad (Der Barbier von Bagdad)
    type: MusicAlbum
    date published: 2024-12-20
  genre: german-romanticism
  isrc code: GBAYC2402367
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T18:38:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xabeac059da37bb9cc5a8c3d0eb7d4dc14422522c73fe37cc203382271a70ab27
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960448
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960448
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2402367
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T18:48:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabeac059da37bb9cc5a8c3d0eb7d4dc14422522c73fe37cc203382271a70ab27. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2402367 — a six-check JSON result.
    date published: 2026-07-31T18:48:12Z
  audio: Cornelius: Der Barbier von Bagdad: Ouvertüre (Orch. Liszt & Mottl)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.623
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.942
    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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track: Cornelius: Der Barbier von Bagdad, Act 1: "Vor deinem Fenster" (Nureddin)
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  duration: PT3M36S
  duration ms: 216773
  explicit: false
  by artist: Peter Cornelius
  by artist: Erich Leinsdorf
  by artist: Nicolai Gedda
  by artist: Philharmonia Orchestra
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    type: MusicAlbum
    date published: 2024-12-20
  genre: german-romanticism
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2402370
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T10:42:33Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ccef85ef275e80a5164c385f853b21843d4a794f4c03153d6d154192a7d1b7. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2402370 — a six-check JSON result.
    date published: 2026-07-30T10:42:33Z
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
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    additional property: Mode Name
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Rousseau: Le devin du village
type: MusicAlbum
date published: 2024-08-16
track: Rousseau: Le devin du village: Ouverture
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  duration: PT3M16S
  duration ms: 196280
  explicit: false
  by artist: Jean-Jacques Rousseau
  by artist: Louis de Froment
  by artist: Orchestre de Chambre Louis de Froment
  in album: Rousseau: Le devin du village
    type: MusicAlbum
    date published: 2024-08-16
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115607202
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15276f9c4c30e101dd017e8aabeb504ef36f132376b8d098154c0275f458e36. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115607202 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Rousseau: Le devin du village: Ouverture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.251
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.46
    additional property: Energy
      type: PropertyValue
      value: 0.189
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.915
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.432
    additional property: Liveness
      type: PropertyValue
      value: 0.36
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.44
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.028
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Rousseau: Le devin du village: "J`ai perdu tout mon bonheur" (Colette)
  type: MusicRecording
  duration: PT4M44S
  duration ms: 284386
  explicit: false
  by artist: Jean-Jacques Rousseau
  by artist: Louis de Froment
  by artist: Janine Micheau
  by artist: Orchestre de Chambre Louis de Froment
  in album: Rousseau: Le devin du village
    type: MusicAlbum
    date published: 2024-08-16
  isrc code: FRZ115607203
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T16:36:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x82b746c1e0258c5f1649e064be442a7d4fdb78face395d7c341f41b7f23444ea
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960441
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960441
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115607203
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T17:29:52Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b746c1e0258c5f1649e064be442a7d4fdb78face395d7c341f41b7f23444ea. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115607203 — a six-check JSON result.
    date published: 2026-07-31T17:29:52Z
  audio: Rousseau: Le devin du village: "J`ai perdu tout mon bonheur" (Colette)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.163
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.334
    additional property: Energy
      type: PropertyValue
      value: 0.137
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.965
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.281
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.308
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.937
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

J. Strauss II: Der Zigeunerbaron
type: MusicAlbum
date published: 2023-06-30
track: Strauss, J. II: Der Zigeunerbaron: Ouvertüre
  type: MusicRecording
  duration: PT7M41S
  duration ms: 461000
  explicit: false
  by artist: Johann Strauss II
  by artist: Franz Allers
  by artist: Bavarian State Orchestra
  in album: J. Strauss II: Der Zigeunerbaron
    type: MusicAlbum
    date published: 2023-06-30
  isrc code: DEC629502170
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T12:33:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5bd70fc318901d74e391234ae78adfd000c982f308d6e588b6f91399d687b185
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629502170
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd70fc318901d74e391234ae78adfd000c982f308d6e588b6f91399d687b185. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629502170 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Strauss, J. II: Der Zigeunerbaron: Ouvertüre
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.2
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.212
    additional property: Energy
      type: PropertyValue
      value: 0.101
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.915
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.507
    additional property: Liveness
      type: PropertyValue
      value: 0.093
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.157
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.991
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Strauss, J. II: Der Zigeunerbaron, Act 1: "Das wär' kein rechter Schifferknecht" - "Jeden Tag Müh und Plag" (Ottokar, Czipra, Chor)
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225626
  explicit: false
  by artist: Johann Strauss II
  by artist: Franz Allers
  by artist: Biserka Cvejic
  by artist: Chor der Bayerischen Staatsoper München
  by artist: Willi Brokmeier
  by artist: Bavarian State Orchestra
  in album: J. Strauss II: Der Zigeunerbaron
    type: MusicAlbum
    date published: 2023-06-30
  isrc code: DEC629502171
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T18:32:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5de58d26226032a535673b080159ba29350d089fd894cb194ddeaa7edd3c6884
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960448
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960448
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629502171
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T18:48:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de58d26226032a535673b080159ba29350d089fd894cb194ddeaa7edd3c6884. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629502171 — a six-check JSON result.
    date published: 2026-07-31T18:48:12Z
  audio: Strauss, J. II: Der Zigeunerbaron, Act 1: "Das wär' kein rechter Schifferknecht" - "Jeden Tag Müh und Plag" (Ottokar, Czipra, Chor)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.757
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.24
    additional property: Energy
      type: PropertyValue
      value: 0.161
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.911
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.154
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.455
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Strauss, J. II: Der Zigeunerbaron, Act 1: "Als flotter Geist" - "Ja, das Alles auf Ehr" (Barinkay, Chor)
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170933
  explicit: false
  by artist: Johann Strauss II
  by artist: Franz Allers
  by artist: Chor der Bayerischen Staatsoper München
  by artist: Nicolai Gedda
  by artist: Bavarian State Orchestra
  in album: J. Strauss II: Der Zigeunerbaron
    type: MusicAlbum
    date published: 2023-06-30
  isrc code: DEA340703070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T18:33:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3a341311f33bcfff1bde30ecf45be10ee4efb33c03f2b2b509a681937e562a4b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Strauss, J. II: Der Zigeunerbaron, Act 1: "Als flotter Geist" - "Ja, das Alles auf Ehr" (Barinkay, Chor)
track: Strauss, J. II: Der Zigeunerbaron, Act 1: "Ja, das Schreiben und das Lesen" (Zsupán)

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960448

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960448

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA340703070

OTSTimestamp
type: PropertyValue
value: 2026-07-31T18:48:12Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a341311f33bcfff1bde30ecf45be10ee4efb33c03f2b2b509a681937e562a4b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA340703070 — a six-check JSON result.
date published: 2026-07-31T18:48:12Z

Strauss, J. II: Der Zigeunerbaron, Act 1: "Als flotter Geist" - "Ja, das Alles auf Ehr" (Barinkay, Chor)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 102.782
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.405
additional property: Energy
  type: PropertyValue
  value: 0.433
additional property: Speechiness
  type: PropertyValue
  value: 0.061
additional property: Acousticness
  type: PropertyValue
  value: 0.83
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.412
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.369
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.489
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Strauss, J. II: Der Zigeunerbaron, Act 1: "Ja, das Schreiben und das Lesen" (Zsupán)
type: MusicRecording
duration: PT2M26S
duration ms: 146360
explicit: false
by artist: Johann Strauss II
by artist: Franz Allers
by artist: Kurt Böhme
by artist: Bavarian State Orchestra
in album: J. Strauss II: Der Zigeunerbaron
  type: MusicAlbum
  date published: 2023-06-30
isrc code: DEC629502179
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T05:51:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x470f2428f9f356b5c7d6fc6d189a831b38210456bbdd9f5253525a195e3fc2b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960360
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960360
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629502179
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:42:11Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470f2428f9f356b5c7d6fc6d189a831b38210456bbdd9f5253525a195e3fc2b8. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629502179 — a six-check JSON result.
  date published: 2026-07-31T06:42:11Z
audio: Strauss, J. II: Der Zigeunerbaron, Act 1: "Ja, das Schreiben und das Lesen" (Zsupán)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.892
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.424
  additional property: Energy
    type: PropertyValue
    value: 0.299
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.941
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.695
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.154
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rachmaninov & Tcherepnin: Mélodies
type: MusicAlbum
date published: 2023-05-05
track: Rachmaninov: 12 Romances, Op. 21: No. 5, Lilacs
  type: MusicRecording
  duration: PT1M46S
  duration ms: 106400
  explicit: false
  by artist: Sergei Rachmaninoff
  by artist: Nicolai Gedda
  by artist: Alexis Weissenberg
  in album: Rachmaninov & Tcherepnin: Mélodies
    type: MusicAlbum
    date published: 2023-05-05
  genre: classical
  genre: classical-piano
  genre: concerto
  isrc code: FRZ111000976
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T00:26:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x74f2ad69e1672bdbb0c56e20bcc838d8025584da26d632585ffcf510a5bd773f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111000976
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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Elisabeth Schwarzkopf sings Bach
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Nikolai Gedda Concert in Moscow, October 6, 1980 (Live)
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Verdi: La traviata
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Gluck: Alceste (Sung in French)
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Gluck: Alceste (Highlights) [Sung in French]
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Bach, Schubert, Fauré, Poulenc, Reutter & Strauss: Lieder (Live)
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Adam: Der Postillon von Lonjumeau [Electrola Querschnitte]
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Verdi auf Deutsch: Don Carlos
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Pushkin Songs
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Nicolai Gedda: The First Ten Years, 1952-1962
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  date published: 2026-06-13T12:47:07Z
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Die Zauberflöte, K. 620, Act II: Der Hölle Rache kocht in meinem Herzen (Königin der Nacht)
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by artist: Brigitte Fassbaender
by artist: Heinz Wallberg
by artist: Henryk Czyz
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  date published: 2016-11-22
popularity: 11
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genre: classical-era
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Strauss, R: Der Rosenkavalier, Op. 59, Act I: "Di rigori armato il seno" (Singer)
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by artist: Nicolai Gedda
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popularity: 11
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T11:43:09Z
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La Bohème, Act I: Oh! sventata, sventata (Mimì, Rodolfo)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T11:07:37Z
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La Bohème (1991 Digital Remaster), Act I: Sì. Mi chiamano Mimì (Mimì/Rodolfo)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Faust - opera in five acts (1989 Digital Remaster), Act II: Le veau d'or est toujours debout! (Méphistophélès/Choeur)
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by artist: Rita Gorr
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popularity: 4
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T12:06:10Z
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The Barber of Seville, Act I: Largo al factotum
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Vesperae solennes de confessore, K. 339: V. Laudate Dominum
type: MusicRecording
duration: PT5M9S
duration ms: 309840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Dietrich Fischer-Dieskau
by artist: Edda Moser
by artist: Julia Hamari
by artist: Nicolai Gedda
by artist: Bavarian Radio Chorus
by artist: Eugen Jochum
by artist: Bavarian Radio Symphony Orchestra
in album: Sacred Music
  type: MusicAlbum
  date published: 2019-04-05
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC8600226
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Vesperae solennes de confessore, K. 339: V. Laudate Dominum
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